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Characterization of nifedipine liposomes. (A) The particle size of nifedipine proliposomes after redissolving. (B) The appearance of nifedipine liposomes at 1.4 mg/mL (yellow) and at 140 μg/mL (canary). (C) SEM of nifedipine proliposomes (×33,000) at 3.0 kV.
